Manufacture of wire-glass.



v No. 727,005. PATENTED MAY 5, 1903. v

\ P. & A. SHUMAN.

MANUFACTURE OF WIRE GLASS.

APPLICATION FILED JUNE 14, 1902.

N0 MODEL.

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UNITED STATES Patented May 5, 1903.

PATENT OFFICE.

FRANK SHUMAN AND ARNO SHUMAN, OF PHILADELPHIA, PENNSYLVANIA,

ASSIGNORS TO THE CONTINUOUS GLASS PRESS COMPANY, OF PHILA- DELPHIA, PENNSYLVANIA, A CORPOR ATION 'OF NEW JERSEY.

MANUFACTURE F WIRE-GLASS.

SPECIFICATION forming part of Letters Patent No. 727,005, dated May 5, 1903.

Application filed June 14,1902. Serial No. 111,745. (No model.)

' delphia, State ofPennsylvania, have invented an Improvement in the Manufacture of Wire- Glass, of which the following is a specification.

Our invention has reference to the manufacture of wire-glass; and it consists of certain improvements, all of which are fully set forth in the following specification and shown in the accompanying drawings, which form a part thereof.

The object of our invention is to so form a sheet of wire-glass that the meshed wire shall be wholly embedded within the outer surfaces of the glass and shall embody in its structure a somewhat wavy or sinuous form in length, as more fully pointed out hereinafter. i 7

The process of making our improved wireglass is not made a part of the invention.

claimed in this application, as that forms subject-matter of another application-of even date with this.

Our invention will be better understood by reference to the drawings, in which- Figure l is a longitudinal sectional elevation of a sheet of wire-glass embodying our invention on line 1 1 of Fig. 2. Fig. 2is a plan view of a portion of a sheet of wire-glass embodying our invention. Fig. 3 is a perspective View of a portion of the meshed wire before being embedded within the glass; and Fig. 4 is a View similar to Fig. 3,'showing a modification of our'invention. f

A is the glass,'aud B is meshed wireor metal screen. The longitudinal wires (1 of the meshed-wire screen are twisted together, as shown, to form polygonal apertures, preferably hexagonal. These parts D wherethe wires are twisted together are more or less rigid and flat, so as to lie in approximately the same plane; but the single wire strands E connecting said twisted-wire parts are' curved and may lie somewhat nearer one side of the surface of the glass than themther.

wire. The result of this is that the wire in contact with the glass becomes heated and ductile and the mass of glass which is pushed forward by the roll is forced through the meshes of the wire screen and at the same time somewhat stretches it,sufficiently so as to cause the bent portions E to straighten somewhat and rise into the glass and clear of the ;table,and hence to float and become embedded wholly within the glass, as at F. In this manner the wire meshed structure by its own construction is caused to assume its proper place Within the body of the glass and be wholly covered without the necessity of any special means for holding it down into the mass of glass in the process of manufacture. This method of manufacture is fully set out in another pending application of ours, Serial No. 111,746, and filed June 14, 1902. The sinuous construction of the wire allows for better compensation, necessary because of "the different coeff cients of the glass and iron, and hence the glass is less liable to crack in use when subjected to great changes of temperature.

It is evident that, if desired, the connecting wire parts E need not be allbent, or some may be bent below the twisted parts D and others bent above them. This latter is indicated in Fig. 4. It will be noted that the twisted or connecting portions D of the meshed-metal screen lie substantially in one plane and preferably near the center of the glass, whereas the bent portions F extend nearer to one or both of the surfaces, as the case may he.

When stating that the twisted portions D of the meshed wire lie in one plane, we do not intend to restrict ourselves to a mathematical nicety in this regard, but wish to be understood as meaning that the location of these twisted-wire or united portions of the wire are arranged in substantially the same plane or layer and irrespective of whether the said portions are perfectly straight or not. While we prefer the parts 1) to be straight, nevertheless in practice they are more or less irregular and may, if desired, be somewhat curved, as indicated at D in Fig. 4, without departing from the spirit of our invention both as described and claimed.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. As a new article of manufacture a sheet of wire glass having embedded therein a meshed twisted wire in which the connectingstrands between the twistedwire portions are curved to give to the meshed wire a sinusoidal configuration in longitudinal section.

2. As a new article of manufacture asheet of wire glass having embedded therein a meshed wire in which the connecting-strands are curved to give the meshed wire a sinusoidal configuration in longitudinal section and the connected portions of the wires making up the meshes being twisted together and made approximately straight and substantially in one plane.

3. As a new article of manufacture a sheet of wire-glass having embedded therein a meshed wire in which the connecting-strands are curved to give to the meshed wire a sinusoidal configuration in longitudinal section and nearer one surface of the glass than the other and the connected portions of the wire making up the meshes being twisted together and arranged nearer the other surface of the glass.

4. A wire-glass consisting of a sheet of glass, combined with a meshed wire embedded within it and havingaseries of twistedwire portions lying substantially in one plane and a series of curved connecting portions extending toward one of the surfaces of the glass and to one side of the twisted-wire portions.

5. A wired glass consisting of a sheet of glass combined with a series of straight metal portions connected by a series of curved connecting metal portions and wholly embedded in the glass.

6. A wire-glass consisting of a sheet of glass, combined with a meshed-metal structure embedded within it and having a series of metal portions lying in one plane and a series of curved connecting metal portions extending toward one of the surfaces of the glass and to one side of the other portions which lie in the same plane.

In testimony of which invention we have hereunto set our hands.

FRANK SHUMAN ARNO SHUMAN.

Witnesses:

R. M. HUNTER, R. M. KELLY. 

